Gear shown in this photo:

For the first time in half a year since I began this project, I am listening to music trough the MSSH and actually enjoying it. The noise level is now low enough to be forgotten even with my most sensitive headphones. I concluded the MSSH and the NFB-12 hate each others, and they will only be happy if kept apart. This is why I have the MSSH on another shelf instead of stacking it on top the DAC.